21371409920

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:182

約数の個数: 480

約数和(自身を含む): 64948682304

約数和(自身を除く): 43577272384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 32, 34, 35, 40, 56, 62, 64, 68, 70, 73, 80, 85, 112, 119, 124, 128, 136, 140, 146, 155, 160, 170, 217, 224, 238, 248, 256, 272, 280, 292, 310, 320, 340, 365, 434, 448, 476, 496, 511, 512, 527, 544, 560, 584, 595, 620, 640, 680, 730, 868, 896, 952, 961, 992, 1022, 1054, 1085, 1088, 1120, 1168, 1190, 1240, 1241, 1280, 1360, 1460, 1736, 1792, 1904, 1922, 1984, 2044, 2108, 2170, 2176, 2240, 2263, 2336, 2380, 2480, 2482, 2555, 2560, 2635, 2720, 2920, 3472, 3584, 3689, 3808, 3844, 3968, 4088, 4216, 4340, 4352, 4480, 4526, 4672, 4760, 4805, 4960, 4964, 5110, 5270, 5440, 5840, 6205, 6727, 6944, 7378, 7616, 7688, 7936, 8176, 8432, 8680, 8687, 8704, 8960, 9052, 9344, 9520, 9610, 9920, 9928, 10220, 10540, 10880, 11315, 11680, 12410, 13454, 13888, 14756, 15232, 15376, 15841, 15872, 16337, 16352, 16864, 17360, 17374, 17920, 18104, 18445, 18688, 19040, 19220, 19840, 19856, 20440, 21080, 21760, 22630, 23360, 24820, 26908, 27776, 29512, 30464, 30752, 31682, 32674, 32704, 33635, 33728, 34720, 34748, 36208, 36890, 37376, 38080, 38440, 38471, 39680, 39712, 40880, 42160, 43435, 43520, 45260, 46720, 49640, 53816, 55552, 59024, 60928, 61504, 63364, 65348, 65408, 67270, 67456, 69440, 69496, 70153, 72416, 73780, 76160, 76880, 76942, 79205, 79360, 79424, 81685, 81760, 84320, 86870, 90520, 93440, 99280, 107632, 111104, 114359, 118048, 123008, 126728, 130696, 130816, 134540, 134912, 138880, 138992, 140306, 144832, 147560, 152320, 153760, 153884, 158410, 158848, 163370, 163520, 168640, 173740, 181040, 186880, 192355, 198560, 215264, 228718, 236096, 246016, 253456, 261392, 261632, 269080, 269297, 269824, 277760, 277984, 280612, 289664, 295120, 304640, 307520, 307768, 316820, 317696, 326740, 327040, 337280, 347480, 350765, 362080, 384710, 397120, 430528, 457436, 472192, 491071, 492032, 506912, 522784, 538160, 538594, 555520, 555968, 561224, 571795, 579328, 590240, 615040, 615536, 633640, 635392, 653480, 654080, 674560, 694960, 701530, 724160, 769420, 794240, 861056, 914872, 944384, 982142, 1013824, 1045568, 1076320, 1077188, 1111936, 1122448, 1143590, 1158656, 1180480, 1192601, 1230080, 1231072, 1267280, 1306960, 1308160, 1346485, 1349120, 1389920, 1403060, 1448320, 1538840, 1588480, 1722112, 1829744, 1888768, 1964284, 2027648, 2091136, 2152640, 2154376, 2223872, 2244896, 2287180, 2360960, 2385202, 2455355, 2460160, 2462144, 2534560, 2613920, 2692970, 2779840, 2806120, 2896640, 3077680, 3176960, 3444224, 3659488, 3928568, 4055296, 4182272, 4305280, 4308752, 4447744, 4489792, 4574360, 4721920, 4770404, 4910710, 4924288, 5069120, 5227840, 5385940, 5559680, 5612240, 5793280, 5963005, 6155360, 7318976, 7857136, 8110592, 8348207, 8364544, 8610560, 8617504, 8979584, 9148720, 9443840, 9540808, 9821420, 9848576, 10138240, 10455680, 10771880, 11119360, 11224480, 11926010, 12310720, 14637952, 15714272, 16696414, 17221120, 17235008, 17959168, 18297440, 19081616, 19642840, 19697152, 20276480, 20911360, 21543760, 22238720, 22448960, 23852020, 24621440, 29275904, 31428544, 33392828, 34470016, 35918336, 36594880, 38163232, 39285680, 40552960, 41741035, 41822720, 43087520, 44897920, 47704040, 49242880, 58551808, 62857088, 66785656, 68940032, 73189760, 76326464, 78571360, 83482070, 86175040, 89795840, 95408080, 98485760, 125714176, 133571312, 137880064, 146379520, 152652928, 157142720, 166964140, 172350080, 179591680, 190816160, 251428352, 267142624, 292759040, 305305856, 314285440, 333928280, 344700160, 381632320, 534285248, 610611712, 628570880, 667856560, 689400320, 763264640, 1068570496, 1257141760, 1335713120, 1526529280, 2137140992, 2671426240, 3053058560, 4274281984, 5342852480, 10685704960, 21371409920]

約数ペア:

[(1, 21371409920), (2, 10685704960), (4, 5342852480), (5, 4274281984), (7, 3053058560), (8, 2671426240), (10, 2137140992), (14, 1526529280), (16, 1335713120), (17, 1257141760), (20, 1068570496), (28, 763264640), (31, 689400320), (32, 667856560), (34, 628570880), (35, 610611712), (40, 534285248), (56, 381632320), (62, 344700160), (64, 333928280), (68, 314285440), (70, 305305856), (73, 292759040), (80, 267142624), (85, 251428352), (112, 190816160), (119, 179591680), (124, 172350080), (128, 166964140), (136, 157142720), (140, 152652928), (146, 146379520), (155, 137880064), (160, 133571312), (170, 125714176), (217, 98485760), (224, 95408080), (238, 89795840), (248, 86175040), (256, 83482070), (272, 78571360), (280, 76326464), (292, 73189760), (310, 68940032), (320, 66785656), (340, 62857088), (365, 58551808), (434, 49242880), (448, 47704040), (476, 44897920), (496, 43087520), (511, 41822720), (512, 41741035), (527, 40552960), (544, 39285680), (560, 38163232), (584, 36594880), (595, 35918336), (620, 34470016), (640, 33392828), (680, 31428544), (730, 29275904), (868, 24621440), (896, 23852020), (952, 22448960), (961, 22238720), (992, 21543760), (1022, 20911360), (1054, 20276480), (1085, 19697152), (1088, 19642840), (1120, 19081616), (1168, 18297440), (1190, 17959168), (1240, 17235008), (1241, 17221120), (1280, 16696414), (1360, 15714272), (1460, 14637952), (1736, 12310720), (1792, 11926010), (1904, 11224480), (1922, 11119360), (1984, 10771880), (2044, 10455680), (2108, 10138240), (2170, 9848576), (2176, 9821420), (2240, 9540808), (2263, 9443840), (2336, 9148720), (2380, 8979584), (2480, 8617504), (2482, 8610560), (2555, 8364544), (2560, 8348207), (2635, 8110592), (2720, 7857136), (2920, 7318976), (3472, 6155360), (3584, 5963005), (3689, 5793280), (3808, 5612240), (3844, 5559680), (3968, 5385940), (4088, 5227840), (4216, 5069120), (4340, 4924288), (4352, 4910710), (4480, 4770404), (4526, 4721920), (4672, 4574360), (4760, 4489792), (4805, 4447744), (4960, 4308752), (4964, 4305280), (5110, 4182272), (5270, 4055296), (5440, 3928568), (5840, 3659488), (6205, 3444224), (6727, 3176960), (6944, 3077680), (7378, 2896640), (7616, 2806120), (7688, 2779840), (7936, 2692970), (8176, 2613920), (8432, 2534560), (8680, 2462144), (8687, 2460160), (8704, 2455355), (8960, 2385202), (9052, 2360960), (9344, 2287180), (9520, 2244896), (9610, 2223872), (9920, 2154376), (9928, 2152640), (10220, 2091136), (10540, 2027648), (10880, 1964284), (11315, 1888768), (11680, 1829744), (12410, 1722112), (13454, 1588480), (13888, 1538840), (14756, 1448320), (15232, 1403060), (15376, 1389920), (15841, 1349120), (15872, 1346485), (16337, 1308160), (16352, 1306960), (16864, 1267280), (17360, 1231072), (17374, 1230080), (17920, 1192601), (18104, 1180480), (18445, 1158656), (18688, 1143590), (19040, 1122448), (19220, 1111936), (19840, 1077188), (19856, 1076320), (20440, 1045568), (21080, 1013824), (21760, 982142), (22630, 944384), (23360, 914872), (24820, 861056), (26908, 794240), (27776, 769420), (29512, 724160), (30464, 701530), (30752, 694960), (31682, 674560), (32674, 654080), (32704, 653480), (33635, 635392), (33728, 633640), (34720, 615536), (34748, 615040), (36208, 590240), (36890, 579328), (37376, 571795), (38080, 561224), (38440, 555968), (38471, 555520), (39680, 538594), (39712, 538160), (40880, 522784), (42160, 506912), (43435, 492032), (43520, 491071), (45260, 472192), (46720, 457436), (49640, 430528), (53816, 397120), (55552, 384710), (59024, 362080), (60928, 350765), (61504, 347480), (63364, 337280), (65348, 327040), (65408, 326740), (67270, 317696), (67456, 316820), (69440, 307768), (69496, 307520), (70153, 304640), (72416, 295120), (73780, 289664), (76160, 280612), (76880, 277984), (76942, 277760), (79205, 269824), (79360, 269297), (79424, 269080), (81685, 261632), (81760, 261392), (84320, 253456), (86870, 246016), (90520, 236096), (93440, 228718), (99280, 215264), (107632, 198560), (111104, 192355), (114359, 186880), (118048, 181040), (123008, 173740), (126728, 168640), (130696, 163520), (130816, 163370), (134540, 158848), (134912, 158410), (138880, 153884), (138992, 153760), (140306, 152320), (144832, 147560)]